Conduit.



UNTTnn STATES PATENT OFFICE.

THOMAS J. MILNER, OF DENVER, COLORADO.

CONDUIT.

SPECIFECATXON forming part of Letters Patent No. 701,214, dated May 27',1902.

Application tiled April 6,1 901.

To all whom zit may concern:

Be it known that I, THOMAsJ. MILNER, a citizen of the United States ofAmerica, residing at Denver, in the county of Arapahoe and State ofColorado, have invented certain new and useful Improvements in Conduits;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference beinghadto the accompanying drawings, and to the figures of reference markedtl1ere on, which form a part of this specication.

My invention relates to improvements in conduits composed of sections ofpipe formed from clay or other material and adapted for sewerage,drainage, and other purposes where conduits of this character may beemployed or required.

My improvement consists in the means employed for connecting the pipesections whereby the conduit is given great strength and durability,which is the object of the invention, all of which will now be describedin detail, reference being made to the accompanying drawings, in whichis illustrated an L, embodiment thereof.

In the drawings, Figure l is an elevation of my improved conduit. Fig. 2is a longitudinal section of the same. Fig. 3 is a crosssection of theconduit shown on alarger scale. Fig. 4 is a section taken through one ofthe bands or rings located at the joints between the sections, shown ona larger scale. This section may be indicated by the line ctx, Fig. 3.Fig. 5 is a perspective view showing a portion of one of the rings orbands.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate the sections of the conduit, which may becomposed of clay or any other suitable material. Both extremities of thepipe-sections are formed plain, and bands or rings are employed at thejoints between the sections. These bands are T- shaped in cross-section,being provided with an interiorly projecting circumferential tongue orange 6,1ocated between the ends of the sections 5. The exposed part ofthe band is of sufficient width to overlap the adjacent sections at thejoint. A packing 7, composed of any suitable material, is located SerialNo. 54,723. (No model.)

between the bands and the adjacent extremities of the pipe-sections, thesaid packing extending around the tongue 6,wherebya tight joint isformed. This packing, as shown in the drawings, also overlaps the endsof the sections, being located underneath the body of the band.

Projecting eXteriorly from each band 6 are a number ot' lugs 6c,provided with openings for tie-rods 8, which are employed to connect thebands and lock the sections together to form a conduit of any desiredlength. As shown in the drawings, the bands are each provided with threelugs 6C, though it is evident that the invention is not limited to anyprecise number of lugs. Each of these lugs is provided with two openingsadapted to receive the extremities of the tie-rods leading to the twoadjacent bands, one on each side. These rods are secured by nutsappliedto their threaded extremities, whereby the sections may be securelyclamped together.

An interior circumferential recess is preferably left between thesections around the inner periphery of the tongue 6 after the packing '7is applied. This recess may be filled with cement 9 from the inside ofthe conduit, making the latter perfectly smooth on its interior surface.

The bands 6 are provided with exterior openings 6g, located on oppositesides of av .adapted to pass between the sections at each joint, apacking material located between the tongues and the sections and heldin place by the band, and tie-rods connectingthebands.

2. A conduit composed of sections, bands or rings surrounding theconduit at the joints, and T-shaped in cross-section, an in teriorcircumferential tongue being formed ICO on the ring, adapted to passbetween the ends ofthe sections, the body of the band overlapping thesections exteriorly,the band being provided with exteriorly-projecting,apertured lugs, and tie-rods attached to the lugs for connecting theconduit-sections.

3. A conduit composed of sections, bauds located at the end joints andprovided with interiorly-projecting circumferential tongues locatedbetween the extremities of the sections, the exterior portions of thebands overlapping the sections, a packing cooperating with the bands toform a tight joint, a circular recess being left between the sections atthe inner periphery of the tongue of the band, and a cement iilling forsaid recess.

4. A conduit composed of sections, a band or ring, T-shaped incross-section located at the joints of the sections, the body of eachband overlapping the section ends exteriorly and the tongue passingbetween the ends of the sections, the band being provided with exterioropenings on opposite sides of the tongue, and a cavity being leftbetween the band and the conduit into which molten metal or otherpackingmay be introduced through the said openings.

5. A band for sectional pipes or conduits, said band being T-shaped incross-section whereby a circumferential tongue is formed on its innerperiphery, its outer periphery having a plurality of apertured lugs.

In testimony whereof I afx my signature in presence of two witnesses.

THOMAS J. MlLNER.

Witnesses:

DORA` C. SHICK, MARY C. LAMB.

